7(y^2+5y-9)+y=y(7y-2)+13

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Solution for 7(y^2+5y-9)+y=y(7y-2)+13 equation:


Simplifying
7(y2 + 5y + -9) + y = y(7y + -2) + 13

Reorder the terms:
7(-9 + 5y + y2) + y = y(7y + -2) + 13
(-9 * 7 + 5y * 7 + y2 * 7) + y = y(7y + -2) + 13
(-63 + 35y + 7y2) + y = y(7y + -2) + 13

Reorder the terms:
-63 + 35y + y + 7y2 = y(7y + -2) + 13

Combine like terms: 35y + y = 36y
-63 + 36y + 7y2 = y(7y + -2) + 13

Reorder the terms:
-63 + 36y + 7y2 = y(-2 + 7y) + 13
-63 + 36y + 7y2 = (-2 * y + 7y * y) + 13
-63 + 36y + 7y2 = (-2y + 7y2) + 13

Reorder the terms:
-63 + 36y + 7y2 = 13 + -2y + 7y2

Add '-7y2' to each side of the equation.
-63 + 36y + 7y2 + -7y2 = 13 + -2y + 7y2 + -7y2

Combine like terms: 7y2 + -7y2 = 0
-63 + 36y + 0 = 13 + -2y + 7y2 + -7y2
-63 + 36y = 13 + -2y + 7y2 + -7y2

Combine like terms: 7y2 + -7y2 = 0
-63 + 36y = 13 + -2y + 0
-63 + 36y = 13 + -2y

Solving
-63 + 36y = 13 + -2y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '2y' to each side of the equation.
-63 + 36y + 2y = 13 + -2y + 2y

Combine like terms: 36y + 2y = 38y
-63 + 38y = 13 + -2y + 2y

Combine like terms: -2y + 2y = 0
-63 + 38y = 13 + 0
-63 + 38y = 13

Add '63' to each side of the equation.
-63 + 63 + 38y = 13 + 63

Combine like terms: -63 + 63 = 0
0 + 38y = 13 + 63
38y = 13 + 63

Combine like terms: 13 + 63 = 76
38y = 76

Divide each side by '38'.
y = 2

Simplifying
y = 2

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